Finding the Fourth Proportional to 5,553.20, 7,664.72 and 3,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,553.20 : 7,664.72 = 3,196.72 : x
2. Step 2: Convert to fraction form
   5,553.20/7,664.72 = 3,196.72/x
3. Step 3: Cross multiply
   5,553.20x = 7,664.72 × 3,196.72
4. Step 4: Simplify right side
   5,553.20x = 24,501,963.72
5. Step 5: Solve for x
   x = 24,501,963.72/5,553.20
6. Step 6: Final answer
   x = 4,412.22